Abstract: A method for operating a semiconductor device includes obtaining task structure information of a task processed in a multiprocessor system. The multiprocessor system includes a plurality of nodes, each comprising one or more processing units and a memory directly connected to the processing units. The plurality of nodes include a local node to which an input/output (I/O) device is directly connected and a remote node having no direct connection to the I/O device. The method further includes evaluating the task structure information to determine whether the task is an I/O intensive task and assigning the task to the local node if the task is evaluated to be the I/O intensive task.

Abstract: A multi-core system includes at least three cores, a load comparator and a load migrator. The comparator simultaneously compares at least three loads of the at least three cores to detect a maximum load and a minimum load. The load migrator determines a first core having the maximum load as a source core and a second core having the minimum load as a target core of the at least three cores to migrate tasks from the source core to the target core.

Abstract: A system-on-chip (SoC) operates with a memory device and includes a performance monitoring unit (PMU) that measures memory usage for the memory device, and a central processing unit (CPU) configured to implement a dynamic voltage frequency scaling (DVFS) controller that compares the memory usage during a performance monitoring period with a reference value and selects a control scheme accordingly.

Abstract: A multi-core system includes at least three cores, a load comparator and a load migrator. The comparator simultaneously compares at least three loads of the at least three cores to detect a maximum load and a minimum load. The load migrator determines a first core having the maximum load as a source core and a second core having the minimum load as a target core of the at least three cores to migrate tasks from the source core to the target core.